Gabriele Cosmo
191 lines
7.3 KiB
C++
191 lines
7.3 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4eBremsstrahlung52.hh,v 1.4 2006/06/29 19:52:00 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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//
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// ------------ G4eBremsstrahlung5252 physics process ------
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// by Laszlo Urban, 24 July 1996
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//
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// 01-10-96 new type G4OrderedTable; ComputePartialSumSigma()
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// 20-03-97 new energy loss+ionisation+brems scheme, L.Urban
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// 01-09-98 new method PrintInfo()
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// 10-02-00 modifications , new e.m. structure, L.Urban
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// 07-08-00 new cross section/en.loss parametrisation, LPM flag , L.Urban
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// 09-08-01 new methods Store/Retrieve PhysicsTable (mma)
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// 19-09-01 come back to previous process name "eBrem"
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// 29-10-01 all static functions no more inlined (mma)
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// 16-01-03 Migrade to cut per region (V.Ivanchenko)
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// 08-08-03 This class is frozen at the release 5.2 (V.Ivanchenko)
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// 09-11-04 Remove Store/Retrieve tables (V.Ivantchenko)
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// 07-02-06 ComputeCrossSectionPerAtom() made public (mma)
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//
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// ------------------------------------------------------------
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// Class description
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//
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// This class manages the bremsstrahlung for e-/e+
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// it inherites from G4VContinuousDiscreteProcess via G4VeEnergyLoss.
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//
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// Class description - end
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#ifndef G4eBremsstrahlung52_h
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#define G4eBremsstrahlung52_h 1
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#include "G4ios.hh"
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4VeEnergyLoss.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4Gamma.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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#include "G4OrderedTable.hh"
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#include "G4PhysicsTable.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4MaterialCutsCouple.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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class G4eBremsstrahlung52 : public G4VeEnergyLoss
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{
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public:
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G4eBremsstrahlung52(const G4String& processName = "eBrem");
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~G4eBremsstrahlung52();
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G4bool IsApplicable(const G4ParticleDefinition&);
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void PrintInfoDefinition();
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void BuildPhysicsTable(const G4ParticleDefinition& ParticleType);
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void BuildLossTable(const G4ParticleDefinition& ParticleType);
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void BuildLambdaTable(const G4ParticleDefinition& ParticleType);
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G4double GetMeanFreePath(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition );
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G4VParticleChange *PostStepDoIt(const G4Track& track,
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const G4Step& step);
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G4double GetLambda(G4double KineticEnergy, const G4MaterialCutsCouple* couple);
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public:
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G4double ComputeMeanFreePath( const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4MaterialCutsCouple* couple);
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void ComputePartialSumSigma( const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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const G4MaterialCutsCouple* couple);
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virtual G4double ComputeCrossSectionPerAtom(
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const G4ParticleDefinition* ParticleType,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double GammaEnergyCut);
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private:
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G4double ComputeBremLoss(G4double Z,G4double natom,G4double T,
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G4double Cut,G4double x);
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G4double ComputePositronCorrFactorLoss(G4double AtomicNumber,
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G4double KineticEnergy,
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G4double GammaEnergyCut);
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G4double ComputePositronCorrFactorSigma(G4double AtomicNumber,
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G4double KineticEnergy,
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G4double GammaEnergyCut);
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G4Element* SelectRandomAtom(const G4MaterialCutsCouple* couple) const;
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G4double ScreenFunction1(G4double ScreenVariable);
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G4double ScreenFunction2(G4double ScreenVariable);
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G4double SupressionFunction(const G4Material* aMaterial,
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G4double KineticEnergy,
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G4double GammaEnergy) ;
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G4eBremsstrahlung52 & operator=(const G4eBremsstrahlung52 &right);
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G4eBremsstrahlung52(const G4eBremsstrahlung52&);
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protected:
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virtual G4double SecondaryEnergyThreshold(size_t index);
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private:
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G4PhysicsTable* theMeanFreePathTable;
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G4OrderedTable PartialSumSigma; // partial sum of total crosssection
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static G4double LowerBoundLambda; // low energy limit of crossection table
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static G4double UpperBoundLambda; // high energy limit of crossection table
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static G4int NbinLambda; // number of bins in the tables
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G4double MinThreshold; // minimun value for the production threshold
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G4double LowestKineticEnergy,HighestKineticEnergy; // bining of the Eloss table
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G4int TotBin; // (from G4VeEnergyLoss)
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static G4double probsup;
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static G4bool LPMflag;
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const std::vector<G4double>* secondaryEnergyCuts;
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public:
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static void SetLowerBoundLambda(G4double val);
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static void SetUpperBoundLambda(G4double val);
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static void SetNbinLambda(G4int n);
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static G4double GetLowerBoundLambda();
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static G4double GetUpperBoundLambda();
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static G4int GetNbinLambda();
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static void SetLPMflag(G4bool val);
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static G4bool GetLPMflag();
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4eBremsstrahlung52.icc"
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#endif
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